CN201214338Y - Chalk sleeve - Google Patents
Chalk sleeve Download PDFInfo
- Publication number
- CN201214338Y CN201214338Y CNU2008200668272U CN200820066827U CN201214338Y CN 201214338 Y CN201214338 Y CN 201214338Y CN U2008200668272 U CNU2008200668272 U CN U2008200668272U CN 200820066827 U CN200820066827 U CN 200820066827U CN 201214338 Y CN201214338 Y CN 201214338Y
- Authority
- CN
- China
- Prior art keywords
- chalk
- cylindrical shell
- tube body
- pushing block
- chalk sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a teaching aid, in particular to a chalk sleeve. The chalk sleeve comprises a tube body, a pushing block and a rear cover; wherein, the tube body is provided with a fastening groove; two clamping blocks are arranged on one side of the tube body; the pushing block is arranged in the tube body and fastened in the fastening groove; and the rear cover covers the other end of the tube body. Since a chalk can be sleeved in the unique structure of the chalk sleeve, in the process of writing, the chalk cannot be easily broken to come off and cannot dirt the hand, so the use is convenient and sanitary.
Description
Technical field
The utility model relates to a kind of educational aid, particularly a kind of chalk sleeve.
Background technology
As everyone knows, the teacher can use chalk in a large number in teaching.Fragile because of chalk, dust releasing and the hand of making dirty usually will go to wash after class particularly in severe winter, all can make chapped skin because of washing one's hands after each the teaching, brings many inconvenience to the teacher.
The purpose of this utility model just provides and a kind ofly when using chalk to write not frangibility of chalk, dust is not come off and the hand of making dirty, a kind of chalk sleeve easy to use.
The purpose of this utility model is achieved in that a kind of chalk sleeve.It is characterized in that it is made up of cylindrical shell, pushing block, bonnet, cylindrical shell is provided with draw-in groove, one side at two fixture blocks that are provided with of cylindrical shell, pushing block is established and is placed in the cylindrical shell, and is buckled on the draw-in groove, bonnet covers the other end at cylindrical shell.
The utility model entangles chalk because of its particular structure makes chalk be not easy to fracture in writing process to come off, the hand of can not making dirty, health easy to use.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a partial structurtes schematic diagram of the present utility model.
Among the figure: 1 cylindrical shell, 2 bonnets, 3 fixture blocks, 4 draw-in grooves, 5 pushing blocks
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As Fig. 1, a kind of chalk sleeve, this chalk are with cylindrical shell 1, pushing block 5, bonnet 2 to be formed, and cylindrical shell 1 is provided with draw-in groove 4, one side at two fixture blocks 3 that are provided with of cylindrical shell 1, pushing block 5 is established and is placed in the cylindrical shell 1, and is buckled on the draw-in groove 4, bonnet 2 covers the other end at cylindrical shell 1.During use, the front end of chalk by cylindrical shell inserts in the cylindrical shell and is nested with and be fastened in pushing block in the bonnet, also bonnet can be opened, and has the rear portion of cylindrical shell to insert pushing block and cylindrical shell in chalk, put bonnet, pushing block is pushed away forward, chalk pushes away before because of pushing block by cylindrical shell and releases suitable length by the outlet of barrel front end again, and the user holds two fixture blocks in barrel front end, can write, because of fixture block is clamped chalk, thereby chalk is not easy to fracture and fall, and brought facility to the teacher.
Claims (1)
1. chalk sleeve, it is characterized in that this chalk is with cylindrical shell (1), pushing block (5), bonnet (2) composition, cylindrical shell (1) is provided with draw-in groove (4), be provided with two fixture blocks (3) on one side of cylindrical shell (1), pushing block (5) is established and is placed in the cylindrical shell (1), and be buckled on the draw-in groove (4), bonnet (2) covers the other end in cylindrical shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200668272U CN201214338Y (en) | 2008-05-05 | 2008-05-05 | Chalk sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200668272U CN201214338Y (en) | 2008-05-05 | 2008-05-05 | Chalk sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201214338Y true CN201214338Y (en) | 2009-04-01 |
Family
ID=40519544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200668272U Expired - Fee Related CN201214338Y (en) | 2008-05-05 | 2008-05-05 | Chalk sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201214338Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102632746A (en) * | 2011-02-10 | 2012-08-15 | 张春雷 | Automatic chalk |
-
2008
- 2008-05-05 CN CNU2008200668272U patent/CN201214338Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102632746A (en) * | 2011-02-10 | 2012-08-15 | 张春雷 | Automatic chalk |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090401 |